There are times when situations are out of your control, be true to yourself. Do not waver in your convictions, hold true to the direction your moral compass is guiding you toward.
That being said, jumping to conclusions is not healthy, or productive either. Once facts are before you, analyze them, look at them from multiple angles, and decide if your present situation is one you can live with, or if you need to gracefully bow out.
Either way, things beyond your control may have repercussions on future endeavors. That is a fact of life, it cannot be avoided. Make the best of every situation, whether that means sticking around, or heading for the door.